Digoxin
Lanoxin
Testing Information
Sample Type
Serum
Test Codes
630150
CPT Code
80162
Testing Area
Core Lab - Chemistry
Test Methodology
Abbott Alinity - Particle Enhanced Turbidimetric Inhibition Immunoassay
Reference Range
Therapeutic Range:0.8-2.0 ng/mLCritical Value:>4.0 ng/mL
Expected Turnaround Time
Results Available 24 hours from Receipt
Specimen Collection Criteria
Collect one gold top SST tube (minimum whole blood: 4 mL). Let specimen clot for 30-60 minutes and then centrifuge to separate serum from cells. Refrigerate after centrifugation.Also acceptable: One plain red top tube (minimum whole blood: 1 mL). Let specimen clot, centrifuge, and transfer the serum to a plastic aliquot tube. Draw specimen at least 6 hours following last dose. Record exact time of specimen collection on the tube.
Rejection Criteria
Grossly hemolyzed specimens, quantity not sufficient, grossly lipemic specimens, improperly labeled
Specimen Validity and Retention
Centrifuged SST Tubes:Room Temperature (20-25°C): UnacceptableRefrigerated (2-8°C): 48 hoursFrozen (-20°C or greater): UnacceptableSerum Aliquots:Room Temperature (20-25°C): UnacceptableRefrigerated (2-8°C): 48 hoursFrozen (-20°C or greater): 7 daysSpecimens retained for 7 days after testing
Courier Transportation
Transport centrifuged tube refrigerated (2-8°C)
Clinical Utility
Digoxin is a therapeutic drug used for congestive heart failure. This assay monitors the drug level for therapeutic range and toxicity.
Special Notes
Name alert: Be sure patient is not on Digitoxin.
